Sedation for Fracture Reduction: Indications, Levels, and Alternatives

Most closed fracture reductions use local/regional anesthesia (hematoma block, Bier block, femoral nerve block) ± minimal anxiolysis — not moderate/deep sedation.

When Sedation Is Used

• Pediatric patients (cannot cooperate).
• Complex/displaced fractures requiring prolonged manipulation.
• Multiple fractures, polytrauma.
• Patient factors: severe anxiety, cognitive impairment, movement disorder.

Sedation Levels & Agents

Level	Typical Agent	Provider
Minimal (anxiolysis)	Midazolam 0.05–0.1 mg/kg PO/IN; N₂O	ED physician / orthopedist
Moderate	Ketamine 1–2 mg/kg IV/IM (± midazolam)	ED physician (credentialed) / anesthesia
Deep / GA	Propofol infusion ± ketamine; inhalational	Anesthesiologist / CRNA

Key Safety Requirements

• Pre-sedation assessment (ASA, airway, NPO status).
• Monitoring: continuous pulse ox, ETCO₂, ECG, BP, q5min documentation.
• Rescue equipment (bag-mask, suction, airway cart, reversal agents).
• Trained provider + dedicated monitor (separate from proceduralist for moderate+).
• Recovery to baseline before discharge.

Trend

Ultrasound-guided regional blocks (fascia iliaca, femoral, supraclavicular) increasingly replace sedation for isolated extremity fractures — superior analgesia, faster recovery, fewer respiratory risks.